2-D distribution of the ionised gas oxygen abundance in CALIFA spiral galaxies
Abstract
Spiral arms are distinctive features in disc galaxies where the star formation is enhanced. Whether their gaseous content is different to what found in the rest of the disc (inter-arm region) is still an unexplored matter of debate. In our study we try to shed some light to this question by analysing the full 2-D information provided by the CALIFA survey. With this purpose, oxygen abundance gradients are derived separately for star forming regions in the spiral arms and in the inter-arm area. A distinction between flocculent and grand design galaxies is also performed to look for differences in the origin of these two type of spiral galaxies.
- Publication:
-
The Interplay between Local and Global Processes in Galaxies,
- Pub Date:
- June 2016
- Bibcode:
- 2016ilgp.confE..55S
- Keywords:
-
- galaxies: general;
- galaxies: structures